Originally Posted by ap72
There's no "like dropping my compression a full point" with all the compression you'll have with 64cc chambers you'll require race fuel. E85 may be another option for you, but conversion is costly, though race gas is costly too.
All very true, but I have heard running aluminum heads since they cool more rapidly than steel will run cooler and effectively act as if you have one less point of CR such as 10:1 steel and 9:1 aluminum. Is this not the case? Like I said previously, I have no problem running race fuel I have already implemented a blend but I plan to run more of a blend if not straight race fuel.